Specification: Material: plastic-steel. Size: 14.5x25cm. Suit for the tube diameter: 1.5cm - 4.2cm. 90Rotatable DesignAdjustable 90 degree rotating clamp, turn the screw to make sure it fits your pipe size. Easily choose the orientation of the bottle holder to suit your needs, making it easier to use. This bike cup holder can be mounted on the handlebars,under the seat, down tube, fork and front tube of your bike. Sturdy Bottle HolderThe arms of the bottle holder wrap around the bottle to ensure it is secure and strong, so you don't have to worry about it falling off during the ride. Easy to InstallThe clamp of the water bottle holder are designed for easy installation and removal. Installed in seconds, no tools required. You can turn the clamp clockwise to tighten the water bottle holder and remove it easily at any time. Stay Hydrated on RideYou need to stay hydrated while cycling, and this bike bottle cage gives you quick and easy access to your water bottle. Lightweight and portable, it is compatible with a wide range of bikes such as road, mountain, hybrid and electric bikes. This will be a must have for outdoor cycling. Wide ApplicationOur universal cup holders are perfect for prams, bicycles, mountain bikes and wheelchairs. The cup holder body can fit different sizes of cups and bottles such as water bottles, coffee cups, milk bottles and juice bottles. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.